/*
 ### jQuery Star Rating Plugin v2.5 - 2008-09-10 ###
 * http://www.fyneworks.com/ - diego@fyneworks.com
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 ###
 Project: http://plugins.jquery.com/project/MultipleFriendlyStarRating
 Website: http://www.fyneworks.com/jquery/star-rating/
*//*
	Based on http://www.phpletter.com/Demo/Jquery-Star-Rating-Plugin/
 Original comments:
	This is hacked version of star rating created by <a href="http://php.scripts.psu.edu/rja171/widgets/rating.php">Ritesh Agrawal</a>
	It thansform a set of radio type input elements to star rating type and remain the radio element name and value,
	so could be integrated with your form. It acts as a normal radio button.
	modified by : Logan Cai (cailongqun[at]yahoo.com.cn)
*/

/*# AVOID COLLISIONS #*/
;if (window.jQuery) (function($) {
    /*# AVOID COLLISIONS #*/

    // IE6 Background Image Fix
    if ($.browser.msie) try { document.execCommand("BackgroundImageCache", false, true) } catch (e) { }
    // Thanks to http://www.visualjquery.com/rating/rating_redux.html

    // default settings
    $.rating = {
        cancel: 'Cancel Rating',   // advisory title for the 'cancel' link
        cancelValue: '',           // value to submit when user click the 'cancel' link
        split: 0,                  // split the star into how many parts?

        // Width of star image in case the plugin can't work it out. This can happen if
        // the jQuery.dimensions plugin is not available OR the image is hidden at installation
        starWidth: 16,

        //NB.: These don't need to be defined (can be undefined/null) so let's save some code!
        //half:     false,         // just a shortcut to settings.split = 2
        required: true,         // disables the 'cancel' button so user can only select one of the specified values
        readOnly: false,         // disable rating plugin interaction/ values cannot be changed
        //focus:    function(){},  // executed when stars are focused
        //blur:     function(){},  // executed when stars are focused
        //callback: function(){},  // executed when a star is clicked

        // required properties:
        groups: {}, // allows multiple star ratings on one page
        event: {// plugin event handlers
        fill: function(n, el, settings, state) { // fill to the current mouse position.
        if ($.rating.readOnly) return;
        
                //if(window.console) console.log(['fill', $(el), $(el).prevAll('.star_group_'+n), arguments]);
                this.drain(n);
                $(el).prevAll('.star_group_' + n).andSelf().addClass('star_' + (state || 'hover'));
                // focus handler, as requested by focusdigital.co.uk
                var lnk = $(el).children('a'); val = lnk.text();
                if (settings.focus) settings.focus.apply($.rating.groups[n].valueElem[0], [val, lnk[0]]);
            },
            drain: function(n, el, settings) { // drain all the stars.
            if ($.rating.readOnly) return;
                //if(window.console) console.log(['drain', $(el), $(el).prevAll('.star_group_'+n), arguments]);
                $.rating.groups[n].valueElem.siblings('.star_group_' + n).removeClass('star_on').removeClass('star_hover');
            },
            reset: function(n, el, settings) { // Reset the stars to the default index.
            if ($.rating.readOnly) return;
                
                if (!$($.rating.groups[n].current).is('.cancel'))
                    $($.rating.groups[n].current).prevAll('.star_group_' + n).andSelf().addClass('star_on');
                // blur handler, as requested by focusdigital.co.uk
                var lnk = $(el).children('a'); val = lnk.text();
                if (settings.blur) settings.blur.apply($.rating.groups[n].valueElem[0], [val, lnk[0]]);
            },
            click: function(n, el, settings) { // Selected a star or cancelled
            if ($.rating.readOnly) return;
            
                $.rating.groups[n].current = el;
                var lnk = $(el).children('a'); val = lnk.text();
                // Set value
                $.rating.groups[n].valueElem.val(val);
                // Update display
                $.rating.event.drain(n, el, settings);
                $.rating.event.reset(n, el, settings);
                // click callback, as requested here: http://plugins.jquery.com/node/1655
                if (settings.callback) settings.callback.apply($.rating.groups[n].valueElem[0], [val, lnk[0]]);
            }
}// plugin events
        };

        $.fn.rating = function(instanceSettings) {
            if (this.length == 0) return this; // quick fail

            instanceSettings = $.extend(
			{}/* new object */,
			$.rating/* global settings */,
			instanceSettings || {} /* just-in-time settings */
		);

            // loop through each matched element
            this.each(function(i) {

                var settings = $.extend(
				{}/* new object */,
				instanceSettings || {} /* current call settings */,
				($.metadata ? $(this).metadata() : ($.meta ? $(this).data() : null)) || {} /* metadata settings */
			);

                ////if(window.console) console.log([this.name, settings.half, settings.split], '#');

                // Generate internal control ID
                // - ignore square brackets in element names
                var n = (this.name || 'unnamed-rating').replace(/\[|\]/, "_");

                // Grouping
                if (!$.rating.groups[n]) $.rating.groups[n] = { count: 0 };
                i = $.rating.groups[n].count; $.rating.groups[n].count++;

                // Accept readOnly setting from 'disabled' property
                $.rating.groups[n].readOnly = $.rating.groups[n].readOnly || settings.readOnly || $(this).attr('disabled');

                // Things to do with the first element...
                if (i == 0) {
                    // Create value element (disabled if readOnly)
                    $.rating.groups[n].valueElem = $('<input type="hidden" name="' + n + '" value=""' + (settings.readOnly ? ' disabled="disabled"' : '') + '/>');
                    // Insert value element into form
                    $(this).before($.rating.groups[n].valueElem);

                    if ($.rating.groups[n].readOnly || settings.required) {
                        // DO NOT display 'cancel' button
                    }
                    else {
                        // Display 'cancel' button
                        $(this).before(
						$('<div class="cancel"><a title="' + settings.cancel + '">' + settings.cancelValue + '</a></div>')
						.mouseover(function() { $.rating.event.drain(n, this, settings); $(this).addClass('star_on'); })
						.mouseout(function() { $.rating.event.reset(n, this, settings); $(this).removeClass('star_on'); })
						.click(function() { $.rating.event.click(n, this, settings); })
					);
                    }
                }; // if (i == 0) (first element)

                // insert rating option right after preview element
                eStar = $('<div class="star"><a title="' + (this.title || this.value) + '">' + this.value + '</a></div>');
                $(this).after(eStar);

                // Half-stars?
                if (settings.half) settings.split = 2;

                // Prepare division settings
                if (typeof settings.split == 'number' && settings.split > 0) {
                    var stw = ($.fn.width ? $(eStar).width() : 0) || settings.starWidth;
                    var spi = (i % settings.split), spw = Math.floor(stw / settings.split);
                    $(eStar)
                    // restrict star's width and hide overflow (already in CSS)
				.width(spw)
                    // move the star left by using a negative margin
                    // this is work-around to IE's stupid box model (position:relative doesn't work)
				.find('a').css({ 'margin-left': '-' + (spi * spw) + 'px' })
                };

                // Remember group name so controls within the same container don't get mixed up
                $(eStar).addClass('star_group_' + n);

                // readOnly?
                if ($.rating.groups[n].readOnly)//{ //save a byte!
                // Mark star as readOnly so user can customize display
                    $(eStar).addClass('star_readonly');
                //}  //save a byte!
                else//{ //save a byte!
                    $(eStar)
                // Enable hover css effects
				.addClass('star_live')
                // Attach mouse events
				.mouseover(function() { $.rating.event.drain(n, this, settings); $.rating.event.fill(n, this, settings, 'hover'); })
				.mouseout(function() { $.rating.event.drain(n, this, settings); $.rating.event.reset(n, this, settings); })
				.click(function() { $.rating.event.click(n, this, settings); });
                //}; //save a byte!

                ////if(window.console) console.log(['###', n, this.checked, $.rating.groups[n].initial]);
                if (this.checked) $.rating.groups[n].current = eStar;

                //remove this checkbox
                $(this).remove();

                // reset display if last element
                if (i + 1 == this.length) $.rating.event.reset(n, this, settings);

            }); // each element

            // initialize groups...
            for (n in $.rating.groups)//{ not needed, save a byte!
                (function(c, v, n) {
                    if (!c) return;
                    $.rating.event.fill(n, c, instanceSettings || {}, 'on');
                    $(v).val($(c).children('a').text());
                })
			($.rating.groups[n].current, $.rating.groups[n].valueElem, n);
            //}; not needed, save a byte!

            return this; // don't break the chain...
        };



        /*
        ### Default implementation ###
        The plugin will attach itself to file inputs
        with the class 'multi' when the page loads
        */
        $(function() { $('input[@type=radio].star').rating(); });



        /*# AVOID COLLISIONS #*/
    })(jQuery);
/*# AVOID COLLISIONS #*/
